Means for regulating size of compression-chambers of gas-engines.



No. 673,259. Patented Apr. 30, 190i. 0. HAUTlER.

MEANS FOR BEGULATING SIZE OF COMPRESSION CHAMBERS 0F GAS ENGINES.

(Applicatiop filed Oct. 16, 1899.; (No Model.) 2 Sheets8heet I.

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No. 673,259. Patented Apr. 30, l90l.

C. HAUTlEB. MEANS FOB REGULATING SIZE OF COMPRESSION CHAMBERS OF GAS ENGINES;

(Application fild Oct 16, 1899.\ (-Na Model.) 2 Sheets-Sheet 2.

UNITED STATES PATENT OFFICE.

OAMILLE HAUTIER, OF PARIS, FRANCE.

MEANS FOR REGULATING SIZE .OF COMPRESSlON-CHAMBERS F GAS-ENGINES.

SPECIFICATION formingpart of Letters Patent No. 673,259, dated. April 30, 1901.

Application filed October 16, 1899- Serial No. 733,785. (No model-E ttZZ whom it may concern:

Be it known that I, CAMILLE HAUTIER, a citizen of the French Republic, residing at Paris, France, have invented certain new and useful Improvements in Means for Regulating the Size of Compression-Chambers of Gas- Engines, of which the following is a specification.

The invention consists in a gas-motor or internal -combustion engine having means for regulating the compression-chamber between the head of the cylinder and the opposite and movable face of the piston during the running of the motor without taking account of the number of revolutions per minute of the' motor-shaft.

In the accompanying drawings, Figure 1 is a vertical sectional view of a four-cylinder engine embodying my invention, and Fig. 2 is a transverse sectional view taken on the line X Y Z of Fig. 1. Fig. 3 is a plan View of Fig. 1. Figs. 4, 5, 6, 7, 8, and 9 are detail views of the stud, lever, and arm connections.

The numeral-references denote the same. parts through the several views of the drawings.

To illustrate the application of my invention to a gas or internal-combustion engine, I have shown a four-cycle engine with four cylinders 1 2 3 4, having the four pistons 5 6 7 8, with their connecting-rods 9 10 11 12, arranged in pairs at angles of one hundred and eighty degrees and Working alternately with each other-that isto say, to give four explosions for the four cycles during two complete revolutions of the engine-shaft, which latter is formed by the four fly-wheels 13 14 15 16 and. the horizontal shafts 17, 18, and 19, resting in the boxes 20, 21, and 22, carried by the portions of the frame 23, 24, and which are intact with the frame portion 26.

The headpiece 27, which contains the four cylinders 1 2 3 4, is movable, as I will describe farther on. Moreover, in the interior of this casting there is formed, as shown at 28, a water-channel for cooling the cylinders 1 to 4. The cooling liquid enters by the tube 29 and passes out by the tube 30, Fig. 3.

Near the upper part of the motor I place the pipes 31 32, Figs. 2 and 3, which conduct the explosive gases from a carburetor to the several gas-inlet valves 33 34 35 36, Fig. 3,

which are automatically opened during the operation of the engine by the pistons 5 to 8 and are returned to their seats bytheir respective springs. The course of the gases is indicated by the arrows, Figs. 2 and 3.

A centrifugal governor continually lubricated is composed of two balls 37 38 of the vertical shaft 39 and collar 40, placed above a spring 41. This governor is revolved by a pinion 42, fixed on the hubof the fly-Wheel 15 and engaging with a miter-gear 43, keyed to the vertical shaft 39. The tension of the spring 41 varies according to the speed of rotation of the engine. The movable sleeve 44 on the vertical shaft 39, which is also a part of the governor, has a groove 45, in which there engages the forked end of a lever 44, that controls the valve of a carbureter.

Once the explosive gas is compressed, as is common in four-cycle motors, its ignition is effected in carrying out my invention in each cylinder by the igniters46, 47, 48, and 49, respectively, Fig. 3, which consist of igniting-tubes rendered incandescent by a heater placed, for example, as shown in Fig. 2.

For regulating the amount of compression, and consequently the explosive action, by adjusting the distance between the head of the cylinder and the opposite and movable face of the piston without interfering with the running of the engine the screw-threaded lugs 51, attached to the cylinder-head casting 27, are traversed by the vertical screw-rods 52 53, with shoulders 54 55, and attachable collars 56 57 on their bottom ends engaging with the lugs 58 59, attached to the frame 26, and with each of their upper ends provided with a pinion 60 and 61, respectively, keyed on the screw-rods and engaging with Worm-screws 62 and 63, respectively, keyed to a horizontal shaft 64, furnished with a hand-Wheel 64 so that by turning to theleft or to the right the hand-wheel 64 the screws 52 53 lower or elevate the cylindercasting 27 or,in other words,the group of cylinders 1, 2, 3,and 4, and thus,as I have shown, change at will of the motorman the distance which separates the head of each cylinder from the opposed surface of its piston. It results that at the instant the compression of the explosive gases introduced through the valves 33 34 35 36 is augmented the explosion becomes more rapid and much more effectuah After the explosion the opening of the exhaust-valves 65 66 67 68,- Fig. 3, is effected by the aid of the vertical shaft '39, and the speed is altogether regulated by the centrifugal governor above described. The

upper end of the vertical shaft 39 is provided cylinders'l 2 3 4 that the movement of the exhaust-valves 67 68 is effected on. one side by the connecting-rod 71, provided with a longitudinal slot 75,which has an alternate rectilinear movement, andengaging with the stud 77 of the lever 76 shifts it. The lever 76 is fixed to a shaft 78, journaled in bearings of the fixed su pport 79, andattached in a rigid manner to the pi'ece80, so that by reason of a rectilinear movement of the stud 77 by the slot 75 there is effected a push on one of the stems of the exhaust-valves 67 or 68, Fig. 3, openingit for the necessary moment by-means-of the mechanism I have described. The elasticity of the spring of each valve returns it to its seat. The exhaust of the consumed gases is through the channels indicated by the arrows of Fig. 2, and for the two cylinders 3 and 4 by asingl'e'tube 81, fixed to the cylinder-head by a single bolt 82. When the exhaust-valves 65 66 are to actthat is to say, an instant after the valves 67 68-and in consequence of the rotary and continued movement of the vertical shaft 39 and the crank-disks 69 and 72 the connecting-rod 74, which has a longitudinal slot 83, moves the lever 84 by its stud 85, and

by reason of the connection that exists be- It results from this symmetrical tween the shaft 86 and the piece 87, similar to that of 80, the two vertical stems of the exhaust-valves 65 66 are operated by the arm- 87, and the escape of the consumed gases takes place instantly. Then the spring fixed on each stem of the exhaust-valves returns to its seat the open' valve. All the parts of the mechanism described are nowin the position shown by Figs. 1, 2, and 3. The consumed gases are exhausted through the tube 88, attached by abolt 89 to the cylinder-head.

, Having thus described myinvention, what I claim as new, and desire to secure by Letters Patent, i's- 1. In a four-cycle motor or gas-engine, the combination with the engine-frame having lugs, and the cylinders having screw-lugs, of the screw-rods working through the screwlugs and revolubly secured-in the said framelugs, and carrying gear-wheels, a'sha'ft having a worm-gear ateach end meshing with saidgear-wheels, and means for turning the shaft to vary the position of the cylinders.

2. Ina fourcycleengine, the combination with the engine-frame havinglugs, and the cylinders having screw-lu gs=, of the screwn'ods -working through the screw-lugsandturnable in the said fra |ne-lugs,.a gear-wheel fixed to each screw-rod, a shaft extending from one to the other of said-rods, a worm-gear secured to each end of the shaft, andmeshing. with the said: gear-wheels, and means for turning said shaft to simultaneously vary the position of the cylinders Without stopping theengine. In witness whereof I hereunto set my hand in the presence of two witnesses,

GAM-ILLE HAUFIER.

Witnesses:

J. ALLISON BOWEN, A. BAKER. 

